use std::io;

fn main() {
    let n = read_input();
    let mut v: Vec<i32> = Vec::new();

    for _i in 0..n {
        v.push(read_input());
    }
    for value in v {
        println!("{}", (value as f64).sqrt().floor());
    }
}

fn read_input() -> i32 {
    let mut s = String::new();
    io::stdin().read_line(&mut s).unwrap();
    s.trim().parse().unwrap()
}